True, but the easiest test is to pull the main power to the hospital and watch the system automatically take over. If anything fails you know what is wrong. This is scheduled so that those in surgery (or other worrisome situations) have extra help and can signal get back to mains power now.
ideally the hospital’s generator control system or transfer switch is able to start and synchronize the generators and turn up the throttle until no power is being imported from the utility prior to opening the utility feed, thereby transferring the load from the utility to the generators. This test is only performed when there are no surgeries scheduled and it is cancelled if there are any emergencies coming in all of the sudden. If the test is already in progress incoming ambulances with patients requiring surgery are diverted to another hospital.
To finish the test the hospital is synchronized to the utility, the throttle on the generators turned down until no power is flowing through the generator breaker which is then opened.
I’ve built and programmed control systems that do all this with multiple generators, multiple utility feeds, and multiple tiers of loads of different priorities.
bluGill|5 years ago
generatorguy|5 years ago
I’ve built and programmed control systems that do all this with multiple generators, multiple utility feeds, and multiple tiers of loads of different priorities.